Refrigerating appliance for precooling, cold storage, and like rooms



IANCE FOR PRECOOLING,` COLD STORAGE, AND LIKE ROOMS Filed Sept. 28, 1925 5 Sheets-Sheet l lnvni'or: Charles A. Moore h AHorneD/.

12b/'Wim l C. A. MOORE REFRIGERATING APPLIANCE FOR PRECOOLING,

COLD STORAGE, AND LIKE ROOMS 5 Sheets-Sheet July 30, 1929.

Filed sept. 2s, 1925 lnvenJror' Charles A. Moore July' 30, 1929- C. A. MooRE 1,722,817

REFRIGERATING APPLIANCE FOR PRECOOLING,

COLD ST kAGE, AND LIKE ROOMS Fi Sept. 28, 1925A 3 Sheets-Sheet .3

MVC-:Mor:

Chores A. Moore Horngys.

that my improved appliance occupies -a p osi-4 Patented `uly 30, 1929.

UNITED `STATES PATENT oF1-1cE.,

CHARLES A. Moolen, or Enma, MINNESOTA.

f BEFBIGERIATIN G APPLIANCE FOR PRECOOLING, COLD STORAGE, AND LIKE ROOMS.

- Application led geptember 28, 1925. Serial No. 59,085.

My invention relates to improvements in overhead appliances for refrigerating precooling, coldstorage and like rooms, one object of the invention being to provide means for effecting refrigerated internal circulation of air within a room, also refrigerated- With the foregoing and other objects inv view, which will appear in the following description, the invention resides in the novel combination and arrangementof` parts and in the details of construction hereinafter described and claimed. v

In the drawings, Fig.' 1 is a view partly, in plan and partly in section, the sameJ illusvtrating an embodiment of my invention as applied to a room structure; Fig. 2 isa vertical, central, sectional view taken longitudlnally of the appliance shown in Fig. 1; Fig.

` 3 is a detail 'sectional view taken on the line.

3-3 4of Fig. 2 and Fig. 4 is a similar View. taken on the line of said Fig. 2.

Referring to the drawings, it will be noted tion in the upper portlono'f a room'structure, the walls and ceiling of which are designated, respectively by the numerals ,10 and 11. Said appliance includes a refrigerating element made up 'of late-like, end forming headers 12, 13, ands eleton. sides a, ,topl yb,'bottom c and intermediate horizontal partitions d, each comprising spaced, refrigerant conduct- 'ing pipes 1 4 `supported at thelrl opposite ends by land communicating with said headers'12, 13. Hangers 15 depending from the ceiling 11 and fastened to the headers 12, 13 carry the appliance with the top thereof near, but

spaced from the ceiling 11. A refrigerant feed pipe 16, fitted with a valve 17, opens Y vvinto the header 12 near the bottom thereof and a return pipe 18; fitted with .a valve 19, is connected with the header near the top thereof. 'Upon circulating a refrigerant through the header 12, pipes 14 and header 13, all of said elements become frost or ice coated, the pipes 14 to such an extent as to close the spaces between them, except at certain places hereinafter referred to. `The frost'br ice.thus resolving the skeleton sides a, top yb, bottom c and partition d into solid wall-like parts, provides two ducts E, F (Fig.'

the former superimposing the latter. Meclially of the top b of the` refrigerating element, constituted by 'said duct structure; is

a relativelywide space between the pipes 14. This space 1s too wide to be bridged by frost accumulatlng on said pipes and it provides an elongated portge in the upper duct E. A

similar port f in the bottom c of the refrigeratmg element is provided in a similar wide space between pipes 14. At the end of said element, next tothe feed header 12, the intermediate pipes 14 of the partition d fall short of said headerthe ends of! said shortened pipes being connected through fittings 20 with the adjacent pipes 14 extending on to the headerv12. Thus constructed, a passageway al is provided in the parti-tion d between `the ducts E, F. A gate 21, hinged on the inner face of theN header 12 and actuated through a turn rod 22, equipped witha hand wheel 23, obstructs or clears said passageway fd', as may be desired. A conduit 24 communicating at its upper end with theouter air hangsdownwardthrough the ceiling 11,

the lower end ofusaidh'conduit opening above the port e 1n the upper duct E. A second and horizontal conduit 25, opening at its outer .Iennl into the outer air, extends through the wall 10 and header .12 into the lower duct F.

Said conduits 24, 25 are' provided, respectively, with dampers 26, 27. A blower L, resting on a shelf 28 secured to the header 12, is supported within the lower duct F, the fan 29 of said blower turning in a vertical plane removed slightly inwardly from the passageway el in thepartition d, -said fan being adapted to set up a current of air through said duct F'toward the end thereof opposite the blower 71,.

In use, the valve 17 of the feed pipe 16 is `opened and the valve19 of the returnpipe 18 similarly adjusted. Circulating through the head-er 12,`pipes 14 and header 13, a refrigerant therein causes .the building up of frost and ice on said parts, the walls of the ducts E, F ultimately being sealed closed, the ,ports e," f,however, and the passageway d remaining o en. With the blower h idle and the gate clear of'the pass'agewayd trefrigeratedin the lower duct F passes downiin thepartitiolfd and the dampers 26, 27

' air egress port therein,

said pipes,

ward through the port f toward the floor, thence to the warmerD walls and upward to the ceiling, thence downward through the port e into the upper duct E, and thence through the passageway d in the partition d to said lower duct F. The opening of the dampers 26, 27 in various degrees, results in.

f closed and the fan 29 in motion, air may be` drawn into the duct F through the conduit 25 and expelled from the room through the conduit 24.. Under this condition forced refrigerated ventilation is effected.

Among the important features resident in my present appliance,is the advantageous "organization of parts whereby the refrigerating element is in itself resolved into a particularly effective duct system for causing the yconvective and diffused circulation of air refrigerated thereby.

Changes yin the speciic form of my inven- Vtion, as herein disclosed, may be made within the scopeof whatv is claimed without departing |from the spirit of my invention.

Having described my invent-ion, what I claim as new and desire to protect by Letters Patent is: l

`1. The combination with a room of a horizontal elongated skeleton-like structure including ends and sides, also a top with an air ingress port also a horizontal partition between top and bottom terminating, at one extremity, short of one of said ends, the same forming walls of superimposed ducts communicatin one with they other, said walls comprising re rigerant pipes relatively arranged and adapted, upon the accumulation of frost theren, to be rendered solid, except along said ports.

' 2. The combination with a room of a relfrigerating appliance therefor including a duct structure comprising skeleton walls made up of a plurality-of refrigerant pipes relatively arrangedto allow for the frosting together'of said pipes upon the accumulation of ice thereon, a feed header common to said pipes,

ture for blowing air therethrough, said fan being arranged at the end of said structure adjacent to said-feed header.

3. The combination with a room of an overhead refrig'erating appli nce therefor including a horizontal elongated duct formed with two elongated ports therein,one above the other, said duct having ends and skele- 'ton walls, each end comprising a-plate-like header, the walls comprising pipes carried therein and a l bot-tom with an a return header also common to and a fan within the duct strucp yway from one end of the upper duct to t by and communicating at their opposite ends with said headers, said pipes being relatively arranged to become frosted together and to form I sold Vwalls dening said parts, a refrigerant feed pi e leading to one of said headers and a re rigerant return pipe lleading from the other header.

4., The combination with a room of an overhead appliance therefor including a pair of horizontal elongated ducts, one communicating at one end thereof with one end of the other duct, said ducts including skeleton-like top, side and bottom walls composed of parallel'refrigerant pipes, mainly arranged in near proximity, one with respect to another, and adapted to be rendered solid by the frosting ltogether of said pipes, two of the adjacent pipes in each of said ducts being suiiciently duct being nearer to theceiling than the port in the other duct.

5. The combination with a room of a refrigerating appliance therefor including a system of horizontal relongated ducts intercommunicatingV at corresponding ends thereof and Ico-operating to set upa circulation of air in the room, ,each duct including walls composed of refrigerant pi es, all except one wall of Ieach duct being a apted to be rendered solid by the frosting together of said pipes and said excepted wall of each duct being likewise rendered solid save at a portion in one duct to provide forthe ingress of air thereto and/at a portion in the other duct to provide for the egress of air therefrom.

6. The combination with a room of an overhead refrigerating appliance therefor iricluding arhorizontal elongated ductiopen at the upper portion thereof to receive air from the upper portion of the room and open at the .lower portion thereof to deliver refrigerated 'being relatively arranged, whereby the same may be frosted -of ice thereon.

7. The combination together by the accumulation with' `a room of a dual `duct structure including two vertically.

spaced walls and a horizontal partition disosed medially of said walls, said partition and walls containing a circulatingl refrigerant, the space betweenthe walls above the' partition formino* 4an upper duct open along the top 'thereof fbi* the ingress of air thereto, the space between the walls beneath the' partition forming a lower duct open along the bottom thereof for theegress of air therefrom, the structure providing an air passagcorresponding end of the lower duct. y

iis

maaar? 8. The combination with a room of an overhead duel duct structure including two vertically spaced walls and a horizontal partition disposed between said walls, said partition and walls consisting of refrigerant pipes relatively arranged, whereby the same may bel frosted together by the accumulation' of ice thereon, the spaces between the walls above and beneath the 'partition respectively proio viding a suction duct and an 'exhaust' duct, the former being open along the top thereof near the ceiling of the room and the latter open along the bottom, and a fan arranged to draw air from the suction 'duct and blow it into the exhaust duct.- t

, 9. The combination with a room of an overhead elongated skeletoiilike structure including sides and a bottom with an air egress port7 therein, said sides and bottom comprising refrigerant pipes relatively arranged and adapted, upon the accumulation of frost thereon, to be rendered solid, except along said port,whereby a duct is formed open along the bottom hereof, and a conduit lead- (ing into the room from the outside to said uct.

' l0. The combination with a room of an overhead elongated skeleton-like structure Vincluding sides and a bottom with an air egress port therein, said sides and bottom comprising refrigerantpipes relatively arranged and adapted, uponthe accumulation raient Nei 1,722, 817.

'cuantas A. noone.

it is hereby certified that lof frost thereon, to be'rendered solid, except along said port, whereby a duct is formed open along the bottom thereof, a conduit leading into the roomv from the outside to said duct, and a fan arranged to draw air` into said conduit and impell it into said duct.

11. The combination with a room of an overhead elongated skeleton-like structure 40 including sides comprising refrigerant pipes relatively arrangedand adapted upon the accumulation of frost thereon, to be rendered soli-d and thereby form an elongated duct opening at the top near the ceilingof the room and opening at the bottom thereof at a lower elevation, and a conduit leading from Without the room to said duct.

l2. The combination with a room of an overhead elongated skeleton-like structure 5o including sides comprising refrigerantpipes relatively arranged and adapted upon the accumulation of frost thereon, to, be rendered solid and thereby form an elongated duct opening at the top near the lceiling of the room and opening at the bottom thereof at a lower y elevation, a conduit leading from without the room to said duct, and a fan associated with said conduit for drawing air into the room from the 'outsgde and impelling it into said 50 duct.

In testimony whereof, l have signed my name to this specificain.

, ns 'nl Mooier.

canriricarn or comentaron. i'

emma any so, i929, m

error appears in the printedspeeitication ci the above numbered patent requiring correction as ioliowszil `Page 2, line 69, claim 3, for "sold wallsv defining said page 3, line 2, claim 8, for the parts" read 'solid walls defining` said ports"; word "duel" read"'dual"; and that the said Letters lPatent should be read with'these corrections therein thatthe same may conform to the'record oi the case v in the Patent @ffice n 4 Signed and seaied this 10th day' of September,

D 'I v y v M. .F.lMoore, Acting Commissioner, of Patents. 

